ICD-10 Code I61.3 – Nontraumatic intracerebral hemorrhage in brain stem (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I61.3 – Nontraumatic intracerebral hemorrhage in brain stem
What it is
I61.3 identifies a spontaneous bleed within the brain stem tissue, not caused by trauma. Use it when documentation specifies an intracerebral hemorrhage in the brain stem.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings may include sudden neurologic deficit, altered consciousness, cranial nerve involvement, or impaired motor function, depending on bleed location and size.
When to use this code
Use I61.3 when the provider documents a nontraumatic intracerebral hemorrhage centered in the brain stem, such as the pons or midbrain. Code it from imaging-confirmed or clearly documented diagnoses. If the note only says “intracerebral hemorrhage” without site, check documentation.
Do not use for
Do not use this code for traumatic intracranial bleeding, subarachnoid hemorrhage, or hemorrhage in another brain region. If the site is unclear or another cause is documented, verify the record before coding.
Coding tip
Match the documented hemorrhage site exactly; brain stem specificity matters for correct code selection.